Advertisements
Advertisements
प्रश्न
Find the values of x and y if a and b are in inverse proportion:
- 12 x 8
- 30 5 y
Advertisements
उत्तर
In an inverse proportion,
When we multiply the first quantity by any constant k, then the another quantity is divided by the same constant k.
Given,
| a | 12 | x | 8 |
| b | 30 | 5 | y |
Here, we see that in part (b), when we divide 30 by 6, we will get 5.
So, in part (a), we will get the value of x.
i.e. x = 12 × 6 = 72
Similarly, in part (a), when we divide x i.e. 72 by 9, we will get 8.
So, in part (b), we will get the value of y.
i.e. y = 5 × 9 = 45
APPEARS IN
संबंधित प्रश्न
A factory required 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54 days?
In which of the following table x and y vary inversely:
| x | 5 | 20 | 10 | 4 |
| y | 20 | 5 | 10 | 25 |
Mohanrao took 10 days to finish a book, reading 40 pages every day. How many pages must be read in a day to finish it in 8 days?
If 40 workers can do a project work in 8 days, then _________ workers can do it in 4 days
It takes 60 days for 10 machines to dig a hole. Assuming that all machines work at the same speed, how long will it take 30 machines to dig the same hole?
In a school there is 7 periods a day each of 45 minutes duration. How long each period is if the school has 9 periods a day assuming the number of hours to be the same?
If x varies inversely as y and x = 4 when y = 6, then when x = 3 the value of y is ______.
Length of a side of an equilateral triangle and its perimeter vary inversely with each other.
Two persons could fit new windows in house in 3 days.
How many persons would be needed to fit the windows in one day?
